Executive overview

A Cambodian certificate of incorporation establishes the company; it does not complete its compliance programme. Corporate records and accounting begin early, tax registration can be triggered before the first sale, and recruitment creates separate labour and social security duties.

Directors should identify each obligation by its legal trigger rather than assume that one registration covers every authority.

For an ordinary private limited company, low turnover does not automatically mean small-taxpayer status, exemption from financial reporting or exemption from returns. Equally, incorporation does not automatically require an independent statutory audit.

Audit depends on the entity's category and the current criteria, including the significant changes introduced by Prakas No. 063 dated 18 August 2026.

1. Understanding Cambodia's corporate regulatory framework

The Ministry of Commerce (MoC) maintains the commercial register. The General Department of Taxation (GDT), within the Ministry of Economy and Finance (MEF), administers taxes. The Accounting and Auditing Regulator (ACAR) oversees accounting, reporting and audit requirements.

The National Social Security Fund (NSSF) administers employment-related social security, while the Ministry of Labour and Vocational Training (MLVT) administers labour compliance. The Council for the Development of Cambodia (CDC) and sector regulators become relevant where investment incentives or licensed activities apply.

The integrated registration portal facilitates applications, but companies should retain each authority's approval and verify outstanding steps. A tax identification number does not demonstrate completion of ACAR or NSSF registration.

2. Post-incorporation obligations with MoC

Retain the incorporation certificate, articles, shareholder register, resolutions and minutes, and maintain an effective registered office and current registered particulars. Changes to directors, shareholders, address, capital or activities require the appropriate corporate approvals and registration updates; do not postpone them until the annual declaration. Different changes can have different procedures and time limits.

Under Prakas No. 117, effective 8 January 2026, the Annual Declaration of Commercial Enterprise (ADCE) window opens three months before the registration anniversary, with a further 15-day grace period after that anniversary.

The declaration confirms registered information and operating status; absence of revenue does not replace it. The published MoC tariff lists KHR 80,000 for filing, but the amount payable should be confirmed against the current portal tariff.

The May 2026 Phase II reforms provide for electronic articles and clarify company-secretary registration. The announced mandatory secretary requirement was deferred to 1 January 2027; companies should check the implementing position relevant to their category before that date. Maintain authorised portal access, including CamDigiKey. Also arrange the national-domain electronic address required for the ADCE under Sub-Decree No. 287; a commercial company ordinarily uses a .com.kh domain.

3. Tax registration and ongoing tax compliance

a) Registration and classification

Prakas No. 701 and current GDT guidance specify registration within 15 working days of commencing economic activity or receiving the relevant registration certificate or permit. Article 203 of the 2023 Law on Taxation instead uses 15 days. Given that wording difference, completing registration within 15 calendar days is a prudent control unless GDT confirms otherwise.

Apply the same conservative control to required registration updates. Check tax certificates, declared activities, bank details and electronic access even where registration was integrated.

Prakas No. 009 generally places registered legal persons in the medium-taxpayer category unless large-taxpayer criteria apply. Turnover-based large thresholds exceed KHR 4 billion for agriculture, KHR 6 billion for services or commerce, and KHR 8 billion for industry; specified legal categories also qualify.

The small category principally concerns sole proprietorships and partnerships. A newly incorporated company cannot select it merely because sales are low.

b) Principal taxes

Tax	Ordinary treatment and trigger
Patent Tax	Standard annual medium-taxpayer amount: KHR 1,200,000. Large taxpayers pay KHR 3,000,000, or KHR 5,000,000 where turnover exceeds KHR 10 billion. Renew between 1 January and 31 March. First-half commencement attracts the full annual amount; second-half commencement half, subject to relief. Separate activities or operations in different municipalities/provinces can require additional patents.
Tax on Income	Ordinarily 20% of taxable income. File and pay within three months after year-end: 31 March for a 31 December year-end. A loss does not remove the annual return obligation.
Income-tax prepayment	Ordinarily 1% of monthly turnover including taxes other than VAT, creditable against annual income tax. Specific exemptions and incentives can apply.
Minimum tax	A 1% computation on annual turnover including taxes other than VAT can apply where proper accounting records are not maintained. It is not automatically an extra 1% charge for every company.
VAT	Normally 10% on taxable domestic supplies and imports; 0% for qualifying exports and qualifying services supplied abroad. Exempt supplies and special transaction rules require separate analysis.
Salary and fringe benefits	Resident salary uses progressive monthly rates from 0% to 20%; non-resident salary generally 20%. Taxable fringe benefits generally attract 20% of taxable market value including taxes, payable by the employer.

These are standard rules, subject to valid incentives and sector provisions. Patent treatment follows Sub-Decree No. 47 and Prakas No. 193; income-tax rules follow the 2023 Law and Prakas No. 578; salary rules follow Sub-Decree No. 48 and Prakas No. 575.

The resident salary bands are: up to KHR 1,500,000, 0%; KHR 1,500,001–2,000,000, 5%; KHR 2,000,001–8,500,000, 10%; KHR 8,500,001–12,500,000, 15%; and above KHR 12,500,000, 20%. Apply them progressively, with any lawful deductions, rather than applying the highest band to the whole salary.

c) Withholding and invoicing

Domestic withholding commonly includes 15% on specified services paid to unregistered resident individuals, 10% on rent, and 15% on resident interest and royalties.

Check registered-supplier invoice exemptions and the exception for interest paid to Cambodian-registered banks or financial institutions. Circular No. 024 dated 31 December 2025 exempts qualifying royalties and interest between self-assessment taxpayers supported by proper invoices; recipients must still recognise and declare the income.

Covered Cambodia-source payments to non-residents, including relevant service fees, interest, royalties and dividends, generally attract 14%, subject to exceptions and treaty procedures. Review accrued liabilities as well as cash payments.

Issue the correct tax or ordinary invoice and retain eligible input-VAT evidence. Business expenditure alone does not establish a VAT credit: the invoice, supplier status, business purpose and statutory restrictions matter. E-filing, an electronic accounting invoice and the Cambodia E-Invoice System are distinct.

Circular No. 007 dated 1 June 2026 covers specified government procurement; it does not establish a universal requirement for private B2B invoices to pass through that system. Check whether a government customer falls within the rollout.

d) Returns, records and inactive periods

Monthly declarations and payments are ordinarily due by the 20th of the following month for manual filing and the 25th through electronic filing, subject to official calendar adjustments.

Maintain required nil returns where there is no activity; startup rent, professional fees, imports or payroll may still create reportable transactions before sales begin. Suspension or closure requires the appropriate formal process.

Medium and large taxpayers retain supporting records for ten years from the end of the tax year. Reconcile returns to the ledger, bank accounts, invoices and payroll, and retain submission acknowledgements and payment receipts for tax-audit readiness.

4. Accounting and financial reporting

Four obligations must be distinguished: bookkeeping records transactions; financial statements preparation produces the annual accounts; submission deposits them with ACAR; independent audit supplies an auditor's opinion where required. An exemption from audit does not, by itself, remove the other obligations.

The Law on Accounting and Auditing requires accounting books and valid supporting documents. Record incorporation costs, subscribed capital, shareholder funding and subsequent transactions appropriately from the company's formation.

Article 21 establishes the calendar year and a new entity's first period from formation to 31 December of the same year, unless an authorised alternative applies. Article 17 requires preparation within three months after year-end. Keep accounting records for at least ten years from their creation; tax and corporate retention clocks must also be respected.

Publicly accountable entities use full Cambodian International Financial Reporting Standards (CIFRS). Eligible entities without public accountability can use CIFRS for SMEs, while qualifying unaudited entities may use the distinct Cambodian Reduced Financial Reporting Framework (CRFRF), which excludes consolidated financial statements.

Eligibility, group reporting and sector requirements determine the choice. The third edition of the SME standard takes effect for periods beginning on or after 1 January 2027, with early application permitted.

Khmer and Khmer riel remain the statutory baseline. ACAR Notification No. 031/24 relaxes routine translation of English accounting records and supporting documents, while allowing ACAR to request translations.

It should not be treated as blanket permission for English-only or foreign-currency-only statutory statements. Confirm any separate notification or approval required for the company's system and reporting arrangements.

Arrange ACAR financial identification number (FIN) and e-filing access. Under Prakas No. 063, in-scope unaudited financial statements are due within three months and 20 days after year-end; audited financial statements and the audit report within six months and 20 days.

For 31 December 2026, these dates are 20 April and 20 July 2027 respectively, absent an authorised extension. Small taxpayers are expressly excluded, but an ordinary limited company is generally at least medium. Annual enterprise filing fees under Prakas No. 016 are KHR 200,000 unaudited and KHR 300,000 audited.

5. Independent statutory audit

Prakas No. 063 replaces Prakas No. 563 of 10 July 2020. Its revised audit criteria apply from the 2026 accounting period. Specified categories include public enterprises, publicly accountable entities, QIPs, foreign-company branches and casino operators.

Specified licensed developers of houses or buildings for sale are covered where annual turnover reaches KHR 8 billion. A foreign-owned Cambodian subsidiary and a foreign-company branch therefore require different analyses.

Other enterprises require audit when they meet at least two of these three tests:

Test	Threshold
Annual turnover	Commerce: at least KHR 20 billion; industry: at least KHR 30 billion; services: at least KHR 8 billion
Total assets at year-end	At least KHR 10 billion
Average workforce during the accounting year	At least 100 workers, calculated using monthly employee figures

Document the relevant sector and measurement basis. A company can meet the applicable criteria in its first accounting period; no general incorporation-year exemption is established. An enterprise that ceases to meet Article 9's criteria must continue annual audits for three consecutive years if its turnover remains at least KHR 5 billion. Falling below a threshold should therefore trigger reassessment, not automatic cancellation.

Article 15 allows applications for specified Article 8 entities inactive for at least 12 months after their latest audited period, or Article 9 entities falling below the criteria with turnover below KHR 5 billion. Apply within 30 days after year-end; the application fee is KHR 1 million and relief is not automatic.

Appoint an appropriately ACAR-licensed independent auditor early, assess independence from accounting services, and complete the audit and issue the report within six months after year-end: 30 June for calendar-year accounts, before the 20 July filing deadline. Non-profit entities have separate criteria.

6. NSSF and employee-related compliance

Prakas No. 168/22 covers employers with one or more workers, including relevant casual and foreign workers. Covered enterprises register within 30 days after opening; new workers must be registered within three days of starting employment.

Use an existing worker's NSSF membership where applicable. Incorporation without workers does not itself generate payroll contributions, but companies must verify their registration status and the actual employment position of paid directors or managers.

For workers subject to all three compulsory schemes, current contribution rates are:

Scheme	Employer	Employee
Occupational risk	0.8%	Nil
Health care	2.6%	Nil
Pension during the current first phase	2%	2%
Total	5.4%	2%

Check pension eligibility, including the exclusion for members aged 60 or above. Use the prescribed contributory wage, not uncapped gross salary. At the KHR 1,200,000 maximum base for a worker covered by all three schemes, the employer pays KHR 64,800 and deducts KHR 24,000 employee pension, remitting KHR 88,800. Obtain the current NSSF wage assessment table for other salaries; legacy minimum and band tables should not be assumed current. The pension phase began nationally in October 2022 and does not restart for each employer.

Remit contributions by the 15th of the following month and submit the monthly workforce report by the 20th. Reconcile enrolment, payroll and remittances, using the NSSF-notified exchange rate for foreign-currency wages. Employer contributions must not be transferred to employees.

7. Additional labour and conditional regulatory requirements

The MLVT opening declaration is normally required before operations. Labour Law Article 17 permits enterprises with fewer than eight permanent workers and no machinery to declare within 30 days after opening. Under the 2025 digital procedure, new enterprises use the registration portal and establish LACMS access within 30 days after receiving the opening-declaration acknowledgement.

Hiring and departure declarations are normally required within 15 days, subject to statutory exceptions. Enterprises with at least eight workers require internal regulations, established within three months after opening after consulting worker representatives and approved by the labour inspector before effectiveness.

Fixed-duration contracts must be written; written contracts for all staff are sound practice. Maintain the establishment register, employment records and payroll. Prakas No. 111/25 requires the LACMS payroll declaration and QR process, plus uploads by the following month's 20th, separate from NSSF reporting. Submit labour self-inspections by the end of June and December.

Foreign workers require appropriate immigration status, work permits and employment cards; employer quota approval is separate. The 2027 quota window runs from 1 September to 30 November 2026. Permits require annual renewal; the 2026 renewal deadline was 31 March 2026. Monitor the next notice. New foreign arrivals working or self-employed generally apply within 90 days of arrival. Check foreign-owner and director obligations individually; a visa or absence of ordinary payroll is insufficient to establish exemption.

Check activity-specific licences before operating, including regulated financial, industrial, tourism, education, construction or e-commerce activities. QIPs have CDC reporting and incentive conditions alongside tax and audit duties.

Sub-Decree No. 139 requires semi-annual and annual investment reports within 20 working days after the relevant tax-return deadline. Electronic personal information is subject to existing safeguards, including the E-Commerce Law. MPTC was still consulting on a draft personal-data law in August 2026; confirm any subsequent enactment rather than treating draft requirements as law

8. First-year compliance roadmap

The first 30 days should resolve registrations, records and operating permissions; the first 90 days should establish reliable monthly routines and required internal rules. These are planning horizons: earlier statutory deadlines still apply.

Compliance obligation	Responsible authority	Applicability or trigger	Statutory deadline	Frequency
Company annual declaration	MoC	Registered limited company	From 3 months before registration anniversary; 15-day grace afterwards	Annual
Tax registration	GDT	Activity commencement or relevant certificate/permit	Procedure: 15 working days; Law Art 203: 15 days; complete within shorter period pending confirmation	Initial; update on changes
Monthly tax declaration and payment	GDT	Registered taxpayer; applicable taxes or required nil returns	Ordinarily 25th electronically; 20th manually, following month	Monthly
Patent Tax renewal	GDT	Registered business and applicable patent category	1 January–31 March; initial payment at registration as applicable	Annual; new activity/site as applicable
Annual Tax on Income filing and payment	GDT	Company tax year, including a loss	Within 3 months after year-end; normally 31 March	Annual
Financial statement preparation	ACAR	Company accounting year	Within 3 months after year-end	Annual
Financial statement submission	ACAR	Entity within Prakas 063	Unaudited: 3 months 20 days; audited: 6 months 20 days after year-end	Annual
Independent statutory audit	ACAR	Category or two-of-three criteria; continuation rules	Complete and issue report within 6 months after year-end	Annual when required
NSSF employer registration	NSSF	Opening of covered enterprise with workers	Within 30 days after opening	Initial; updates when required
NSSF worker registration	NSSF	Worker starts employment; check existing membership	Within 3 days after starting work	Each new worker
NSSF contributions and workforce report	NSSF	Covered employment and monthly contribution route	Payment: following month's 15th; workforce report: 20th	Monthly
Labour opening declaration and LACMS	MLVT	Enterprise opening; statutory small-enterprise exception	Before opening, or within 30 days if exception applies; LACMS within 30 days after opening acknowledgement	Initial
Hiring and departure declarations	MLVT	Reportable worker movement	Normally within 15 days; statutory exceptions apply	On each event
Payroll submission and self-inspection	MLVT	Covered employer	Payroll: following month's 20th; self-inspection: end June and December	Monthly / twice yearly
Internal regulations	MLVT	At least 8 workers	Establish within 3 months after opening; inspector approval before effectiveness	Initial; revise when needed
Foreign workforce quota and permits	MLVT	Foreign employment or relevant working-owner status	2027 quota: by 30 November 2026; new-arrival permits: within 90 days; annual renewals per notice	Annual / event-triggered

For a company formed in October 2026 with a 31 December year-end, the initial reporting period ends that December. Plan 2026 income-tax filing and financial statement preparation by 31 March 2027; then follow the applicable ACAR filing and audit deadlines. The 2027 patent renewal is also due by 31 March.

9. Common compliance risks and misconceptions

“No sales” is not equivalent to “no transactions” or “no filings”. A tax return does not replace an ADCE or ACAR filing. NSSF enrolment does not replace MLVT reporting.

Being a small business commercially does not establish small-taxpayer status. An audit requirement cannot be assessed from turnover alone, and using an external accountant does not transfer directors' responsibility for the company's records and compliance.

10. Regulatory non-compliance and potential consequences

Tax defaults can attract additional tax of 10%, 25% or 40%, depending on the statutory category, together with interest of 1.5% per month or part-month on unpaid tax. Registration and reporting failures can also attract administrative sanctions.

For enterprises already holding an ACAR FIN, late annual filing under Prakas No. 063 can attract KHR 2 million per month, capped at KHR 12 million for the accounting period. Other registration, non-submission and audit breaches require separate assessment.

MoC non-filing can lead to penalties and inactive classification under the applicable conditions. NSSF and labour breaches can result in fines and corrective action.

Sub-Decree No. 102 dated 25 May 2026 introduces revised accounting penalties, generally from 25 November 2026, with specified provisions delayed until 25 May 2027. Apply the provision and commencement date relevant to the actual breach.

11. Recommended compliance practices

Assign an accountable owner for each authority, maintain one calendar showing both triggers and due dates, and keep control of regulatory accounts and official receipts. Close and reconcile accounts monthly; review withholding before approving payments and accruals. Forecast audit thresholds and choose the reporting framework early. Escalate changes in staff, activities, ownership and incentives before implementing them. Record any approved exemption or extension in writing.

12. Conclusion

Early compliance planning gives directors dependable financial information and a practical way to meet separate corporate, tax, reporting and employment obligations. The correct programme reflects the company's actual legal form, transactions, workforce and reporting criteria, and is updated as regulations change.

Frequently asked questions

Does incorporating a company complete all Cambodian registrations?

No. Check each authority's approval and outstanding steps. Tax, ACAR, NSSF, labour and activity-specific licensing requirements can arise at different times.

Must a Cambodian company file returns if it has no revenue?

No revenue does not automatically remove required tax declarations, corporate annual declarations or financial reporting. Startup costs and other payments can also create tax obligations before the first sale.

Does every newly incorporated company need a statutory audit?

No. Apply the category and threshold tests in Prakas No. 063, including continuation rules. A company may become subject to audit in its first accounting period, while an unaudited company can still have accounting and ACAR filing duties.

When are 2026 financial statements due with ACAR?

For a 31 December 2026 year-end, unaudited statements are ordinarily due by 20 April 2027. Required audits should be completed by 30 June 2027, with audited statements and report filed by 20 July 2027, subject to authorised extensions or later instructions.

Can a low-turnover private limited company be a small taxpayer?

Low turnover alone does not establish that status. Prakas No. 009 generally classifies registered legal persons as medium taxpayers unless large-taxpayer criteria apply.

When must a new employer register with NSSF?

A covered enterprise registers within 30 days after opening. New workers are registered within three days of starting employment, unless existing NSSF membership should be used. Coverage is not limited to employers with eight workers.

What are the current NSSF contribution rates?

For a worker covered by all three compulsory schemes, the employer pays 0.8% occupational risk, 2.6% health care and 2% pension; the employee contributes 2% pension. Apply the prescribed contributory wage and check pension eligibility.

Is the MoC annual declaration due on 31 March for every company?

The verified ADCE rule is tied to the registration anniversary: filing opens three months before it, with a 15-day grace period afterwards. Do not substitute the tax-year calendar for that rule.

Disclaimer

This publication provides general information as at 18 October 2026 and is not entity-specific legal, tax or accounting advice. Application depends on the facts, relevant Cambodia legal instruments and subsequent regulatory guidance. Obtain appropriate professional advice before acting, and refresh the regulatory review if publication occurs after this date.